Ocean water is more dense when it is ______.Choose 1 answer:Choose 1 answer:(Choice A) saltier and warmerAsaltier and warmer(Choice B) saltier and colderBsaltier and colder(Choice C, Checked) fresher and warmerCfresher and warmer(Choice D) fresher and colderDfresher and colder
Question
Ocean water is more dense when it is ______.Choose 1 answer:Choose 1 answer:(Choice A) saltier and warmerAsaltier and warmer(Choice B) saltier and colderBsaltier and colder(Choice C, Checked) fresher and warmerCfresher and warmer(Choice D) fresher and colderDfresher and colder
Solution
The correct answer is (Choice B) saltier and colder.
Ocean water density is influenced by temperature and salinity. Cold water is denser than warm water because the molecules in cold water are closer together than in warm water. Similarly, salty water is denser than fresh water because the dissolved salts add mass to the water without significantly increasing its volume. Therefore, when ocean water is saltier and colder, it is denser.
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